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Micromagnetic modelling of L10-FePt/Ag/L10-FePt pseudo spin valves
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10.1063/1.3653290
/content/aip/journal/apl/99/16/10.1063/1.3653290
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/16/10.1063/1.3653290

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Hysteresis loops of (a) simulated and (b) experimentally fabricated FePt/Ag/FePt PSVs with varying Ag post-annealing temperatures of 300, 400, and 500 °C.

Image of FIG. 2.
FIG. 2.

(Color online) Magnetization configurations of the top FePt layer, with a cross section of 1 × 1 μm2, at an applied field of (a) −10, (b) −11, (c) −12, and (d) −14 kOe for the simulated PSV-300. Reversed domains nucleate and propagate. (e)1 × 1 μm2 AFM image illustrating the magnetization configurations of the top FePt layer at an applied field of −2 kOe for the experimentally fabricated PSV with Ag post-annealed at 300 °C. Bright regions represent the reversed domains.

Image of FIG. 3.
FIG. 3.

(Color online) Magnetization configurations of the bottom fixed FePt layer, with a cross section of 1 × 1 μm2, at an applied field of (a) −10, (b) −12, (c) −17, (d) −18, (e) −19, (f) −20, (g) −30, and (h) −50 kOe for the simulated PSV-300. Reversed domains nucleate and propagate. 1 × 1 μm2 AFM image illustrating the magnetization configurations of the top FePt layer at an applied field of (i) −4 and (j)−6 kOe for the experimentally fabricated PSV with Ag post-annealed at 300 °C. Bright regions represent the reversed domains.

Image of FIG. 4.
FIG. 4.

(Color online) Magnetoresistance loops of the simulated PSV-300 and PSV-500.

Tables

Generic image for table
Table I.

Interlayer exchange strength (Sinter ), fraction of exchange decoupled grains within the fixed FePt (fbottom ), and fraction of exchanged decoupled grains within the free FePt layer (ftop ) for the simulated PSV-300, PSV-400, and PSV-500.

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/content/aip/journal/apl/99/16/10.1063/1.3653290
2011-10-17
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Micromagnetic modelling of L10-FePt/Ag/L10-FePt pseudo spin valves
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/16/10.1063/1.3653290
10.1063/1.3653290
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